xvii
General Warnings and Cautions 4
!Caution Do not stop operation by switching OFF electromagnetic contactors on the
primary or secondary side of the inverter.
When there has been a sudden power failure while an operation instruction is
active, then the unit may restart operation automatically after the power failure
has ended. If there is a possibility that such an occurrence may harm humans,
then install an electromagnetic contactor (Mgo) on the power supply side, so
that the circuit does not allow automatic restarting after the power supply
recovers. If the optional remote operator is used and the retry function has
been selected, this will also cause automatic restarting when a Run command
is active. So, please be careful.
!Caution Do not insert leading power factor capacitors or surge absorbers between the
output terminals of the inverter and motor.
When there has been a sudden power failure while an operation instruction is
active, then the unit may restart operation automatically after the power failure
has ended. If there is a possibility that such an occurrence may harm humans,
then install an electromagnetic contactor (Mgo) on the power supply side, so
that the circuit does not allow automatic restarting after the power supply
recovers. If the optional remote operator is used and the retry function has
been selected, this will also cause automatic restarting when a Run command
is active. So, please be careful.
!Caution MOTOR TERMINAL SURGE VOLTAGE SUPPRESSION FILTER
(For the 400 V CLASS)
In a system using an inverter with the voltage control PWM system, a voltage
surge caused by the cable constants such as the cable length (especially
when the distance between the motor and the inverter is 10m or more) and
cabling method may occur at the motor terminals. A dedicated filter of the
400 V class for suppressing this voltage surge is available. Be sure to install a
filter in this situation.
To Next Page
Loading...
Need help?
General
